HISTOLOGICAL CHANGES IN SOME FEMALE RATS ORGANS INFECTED WITH TOXOPLASMA GONDII PARASITE ISOLATED FROM EMBRYO OF ABORTED SHEEP
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Abstract
The current study included the identification of lesions and the histological changes caused by Toxoplasma gondii, which was isolated from embryos of aborted ewes.
15 female albino rats (3 months old) was injected intraperitonia with suspension containing 100 tissue cysts.
After four months of injection, the histological section showed a chronic infection characterized by autolysis in all sections, where the liver sections showed expansion of the central hepatic veins, congestion in sinusoidal with irregularity in hepatic cords, and the presence of the parasites in the liver cells and Kupffer. The brain tissue showed vacuoles in the neurons with an increase in the number of Purkenji cells. Kidney sections were characterized by degenerative and necrotic changes in the endothelial cells of the proximal and distal convoluted tubules with Sloughing of necrotic and degenerated cells of the tubes, which accumulated inside the lumen. The parasites appeared in the endothelial cells of the glomerular tufts. Ovary and the uterus showed increased vascular wall thickness, furthermore, the spleen showed autolytic changes, pigment deposition with the presence of parasites within the cells.
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References
1-Mohammed, A.A.; Mustafa, M.A.; Nektarios, D.G., and Shawkat, Q.L. (2010). Ovine and caprine toxoplasmosis(Toxoplasma gondii). Iranian Journal of Veterinary Science and Technology, 2(2):61-76.
2-Coppin, A.; Dzierszinski, F.; Legrand, S.; Mortuaire, M.; Ferguson, D.J.P, and Tomavo, S. (2003). Developmentally regulated biosynthesis of carbohydrate and storage polysaccharide during differentiation and tissue cyst formation in Toxoplasma gondii. Biochimie., 85:353-61.
3-Barakat, A.M.A.; Abd - Elaziz, M.M., and Fadaly, H.A. (2009). Comparative diagnosis of toxoplasmosis in Egyptian small ruminant by indirect hemagglutination assay and ELISA. Glob. Veteri., 3:9-14.
4-Wong, S., and Remington, J.S. (1994). Toxoplasmosis in pregnancy. Clin. Infect. Dis., 8:853-861
5-Montoya, J.G., and Liesenfeld, O. (2004). Toxoplasmosis. Lancet ., 363: 1965-76.
6- Mordue, D.G.; Monroy, F,; Regina, M.L.; Dinarello, C.A.; and Sibley, L.D. (2001). Acute Toxoplasmosis lead to leathal overproduction of Th1 cytokinesis. J. Immunol., 45:74-84.
7-Hasan, T.A.; Ayan, N.G.; Slia, C., and Ogur, K. (2013). Hepatic stellate cells increase in Toxoplasma gondii infection in mice. Parasites &vectors, 6:135.
8-Sukthana, Y.; Waree, P.; Pongponratn, E.; Chaisri, U., and Riganti, M. (2003). Pathologic study of acute Toxoplasmosis in experimental animals, Trop. Med., 34 (1):16-21.
9-Pearse, A.G.E. (1985). Histochemistry Theoretical and applied, 4th ed, Analytical Technology, Churehiy Livingston, Ediburgh, UK.
10- Laug, C.; Gross, U., and Luder, C.G. (2006). Subversion of innate and adaptive immuneresponses by Toxoplasma gondii. Parasitol. Res., Oct 6.
11-Djurkovic-Djakovic, O.; Klun, I.; Khan, A.; Nikolic, A.; Kne-zevic, U.S., and Sibley, L.D. (2006). A human origin type II strain of Toxoplasma gondii causing severe encephalitis in mice. Micr and infect., 20:1-7.
12-Ramzam, M;, Akgtar, M.; Muhammad, F.;Hussain, I.; Hiszszynska - Sawicka, E.; Haq, A.U.; Mahmood, M.S., and Hafeez, M.A. (2009). Seroprevelencen of Toxoplasma gondii in sheep and goats in Rahim Yar Khan (Punjab), Pakistan, Tropi. Anim., 41: 1225-1229.
13-Aitken, I.D. (2007). Diseases of sheep. 4th ed. Blackwell, Oxford, pp: 13-142.
14-Ahmed, Y.F.; Sokkar, S.M.; Desouky, H.M., and Soror, A.H. (2008). Abortion due to toxoplasmosis in small ruminants. Glob. Veteri., 6:337-342.
15-Riyadh, R. (2005). Flock level seroprevalence of and risk factors for Toxoplasma gondii in sheep and goats in northern Jordan M.Sc. Thesis, Jordan University of Science and Technology, Irbid, Jordan.
16-Buxton, D.; Maley, S.W.; Wright, S.E.; Rodger, S.; Bartley, P., and Innes, E.A. (2007). Toxoplasma gondii and Ovine toxoplasmosis: new aspects of an old story, Veteri. Parasitol., 149:25-28.
17-Williams, R.H.; Hughes, J.M.; Thomasson, D.; Terry, R.S.; Duncanson, P.,; Smith, J.E., and Hide, G.(2008). Evidence that primary infection of Charollais sheep with Toxoplasma gondii may not prevent fetal infection and abortion in subsequent lambings, parasitol., 135: 167-173.
18- Rodger, S.M.; Maley, S.W.; Wright, S.E.; Mackellar, A.; Wesley, F.; Sales, J., and Buxton, D. (2006). Role of endogenous transplacental transmission in toxoplamosis in sheep, Veteri. Reco., 159:768-771.
19-Pinheiro, H.W.; Mota, R.A.; Olibeira, A.A.; Faria, E.B.; Gondim, L.F.; da Silva, A.V., and Anderlini, G.A. (2009). Prevalence and risk factors associated to infection by Toxoplasma gondii in ovine in the state of Alagoas, Brazil.Parasitol. Res., 105:709-715.
20-Husein, M.Q., and Kridli, R.T. (2003). Effect of progesterone Prior to GnRH-PGF2alpha treatment on induction of Ostrys and pregnancy in anoestrous Awassi ewes. Reprodu. in Domest. Anim., 38(3):228-232.
21-Savio, E., and Nieto, A. (1995). Ovine toxoplasmosis: Seroconversion during pregnancy and lamb birth rate in Uruguaayan sheep flocks Veteri. Nary. parasitol., 60: 241-247.